Protobud           { ; Fractal of the day, 06-04-00 Rating (5)
                     ; time=0:06:31.42, SF5 on a P200
                     ;  Version 2000 Patchlevel 9
  reset=2000 type=formula 
  formulaname=mandelbrotmix4 function=recip
  center-mag=0.0665663/0.0150862/2813.113/1/67.499
  params=1/-0.25/-1/-0.26/-1000/100000 float=y
  maxiter=300 bailout=25 inside=atan logmap=yes
  symmetry=none periodicity=0 sound=off
  colors=000p_D<4>oSDoQCoPCmOC<3>lIClGClFClDCjCCjACj9C\
  j6Aj7Ci7Cg7Cd7C<3>Y7CX7CT7C<4>L7CJ7CG7CF7CD7CA7C97C7\
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  j<2>0Vr0Xu0Yv0_y0_z0dz4iz<3>YzzXyzXyzVxyVxxTxuTvsSvp\
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  m9Sj9Og9Jd9Ga7C_77X73T60Q60O60L10J00I00G60FD0FJ0FP0D\
  V0C_0Cd0Ai0Af09i07m07p16u36x34z43z63z71z40z71z94zA7z\
  DAzFDzGGzIJzLMzMPzOSzPVzSYyT`xVcxYfv_iu`lsaosdrrfupg\
  xoizpiyrVpsGioJflMcgP`dQ_aTXYXTV_QS`POcMLfJOgIIvI9zF\
  CzIFzJIzLJzMMzOPzPSzQTzSXzT_zXazY<2>izalzcmzdpzfszgv\
  zjxzlzzm<3>zzszzuzzvzzszzpzzmzzlzzi<2>xzauz_szYpzVoz\
  SlzQjzOizLfzJdzGazD`zCYz9Xz6Tz4Sz1Pz0Oz0Lz0<2>Gz0Fz0\
  Fy0Dy1Dy4Cx7Cx9AxCAvF9vIraDr`D
  }

frm:MandelbrotMix4 {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f,
h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1,
l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l
}